Road scraper



Jan. 25, 1927- J, K. FARRIS RQAD SCRAPER Filed July 23, 1926 2sheets-sheet 1 J. K. FARRIS ROAD SCRAPER Jan. 25,1927. 15,371

FiledJuly 25, 1926 2 Sheets-Sheet 2 Patented Jan. 25, 1927.

JOHN KIRK FARRIS, OF SENIINEL, OKLAHOMA.

norm scnArnn.

Application filed July 23,

This invention relates to road scrapers and more particularly to adevice including a bucket for removing earth from projecting portions ofthe road and transporting the same to depressions in the road, wherethey may be dumped.

An important object of the invention is to provide a device of'thischaracter which may be operated by pushing the same either with atractor or team and in which the various controls may be readilymanipulated without the necessity of the operator diverting hisattention from the work being done.

A further object of the invention is to provide a novel leverageconnection between the bucket and the means for pushing the sameconstantly urging the bucket to tilt and discharge its contents, therebeing a latch preventing the tilting of the bucket until released by theoperator.

A further object of the invention is to provide means for limitingmovement of the bucket when it arrives at a vertical or dischargingposition, together with means for regulating the distance between thelip or cutting edge of the bucket when the bucket is in this position,which is adjustable so that the depth of the layer of dirt deposited bythe bucket, may be regulated.

A further object of the invention is to provide a device of thischaracter which may be readily and cheaply constructed, which will bedurable and eflicient in service and a general improvement in the art. 7

These and other objects I attain by the construction. shown in theaccompanying drawings, wherein for the purpose of illustration is showna preferred embodiment of my invention and wherein Figure 1 is a sideelevation showing a road scraper constructed in accordance with myinvention attached to a tractor to be oper' ated thereby, the scraperbeing shown in the dirt loading position;

Figure 2 is a side elevation of the scraper showing the same in thedumping position;

Figure 3 is a plan view of the scraper;

Figure 4 is a sectional view on the line l4 of Figure 1;

Figure 5 is a'section on the line 55 of Figure 1. v

Referring now more particularly to the drawings, the bucket proper is ofthe usual construction including a bottom plate 10, from the side andrear edges of which walls 1.1 and 12 project upwardly. In accordance1926. Serial No. 124,514.

with my invention, upon the side walls 11 adjacent the top thereof, Imount socket bearings 13 in a manner permitting their adjustmentlongitudinally of the wall from front to back thereof. These bearingsreceive spherical heads 14.- on the ends of the arms 15 of a U-shapedbail 16. The cross bar 17 of this bail connects with a pair ofrearwardly extending pusher arms 18 which overlie the inturned ends 15of the arms 15 of the U, so that these arms always incline upwardly andforwardly from the pivots thereof.

To the side walls 11 adjacent the bottoms thereof, I secure othersockets 19, openings being provided at 20 for adjusting the socketslongitudinally of the side wall. In these sockets are engagedthespherical heads 21 at the ends of the arms 22 of a second U-shapedbail 23, which projects rearwardly from the pivots thereof. Links 24:,which are adjustable as to length, as at 25, are connected at theirlower ends at 26 to the bail 23 and at their upper ends at 27 to thepusher arms 18 at points spaced from the forward ends thereof. Ball andsocket joints are provided at each point 26 and 27. To the cross bar 28of the bail 23, a rigid arm 29 is secured having associated therewith alatch 30 which, in the horizontal position of the bucket, hooks over theupper edge of the rear wall 12. This latch is connected with the arm 29by a spring 31, so that upon a pull on the chain 32 secured to thelatch, it disengages from the wall 12.

To the side walls 11 adjacent the lower ends thereof and at the forwardends of these walls, I secure at forwardly extending braces 34, theforward ends of which each engage one end of a shoe 35, the opposite endof which is adjustably connected with the side wall at 36, so that theprojection of the face 37 of this shoe beyond the forward edge of thebucket bottom may be adjustably regulated. When the bucket is verticallydisposed, it rests upon the faces 37 of the shoes and accordingly byadjusting the shoe 35, the depth of the layer of dirt 1 left, when thebucket is dumped and pushed forwardly over the pile thus formed, may beregulated. I

In loading the bucket, the latch 30 is engaged over the upper end of therear wall and accordingly prevents oscillation of the bucket. When,however, the latch is released, the friction upon the bottom of thebucket will tend to check the motion of the bucket. Since the pull uponthe bucket is from the rear ends of the arms of the U-shaped bail 16 andthese arms incline upwardly and forwardly, the push applied by the arms18 will tend to elevate the rear end of the bucket, so that it finallycomes to rest upon the shoe 37. At this time, motion of the bucket ischecked, by reason of the fact that the bail 23 engages against thebottom of the bucket. This bail likewise serves, by its rotation aboutthe pivots 19, to swing the latch and arm 29 during the dumpingoperation to positions where they do not interfere in any way with themovement of the bucket. In order to assist in transportation, theU-shaped yoke 38 has the ends of the arms 39 thereof pivoted to thesides 11 of the body at 40. These arms are provided with shoes 41,which, when the upper end of the yoke is drawn reari'ardly through thecontrol chains 412, engage with the ground and elevate the bottom of thebucket from the ground. lVhen the device is employed with a tractor, thepush arms 18 are preferably connected at their rear ends by a cross bar43 which forms a pivot for the arms since it is pivotally engaged withthe hitch 14 at the rear of the tractor. In order to relieve the strainupon the ends of the cross bar, these ends may be connected by flexibleelements 45 with the tractor frame at any suitable point, as indicatedat 4 6. Adjacent the forward end of the tractor, the arms ar directedthrough guides 47 secured to the tractor frame and having verticallyelongated eyes 48 through which the arms pass. These eyes permitvertical movements of the arms, such as are necessary to the dumpingoperation, but prevent any transverse movement thereof.

Since the construction hcreinbefore set forth is capable of a certainrange of change and modification without materially departing from thespirit of the invention, I do not limit myself to such specificstructure except as hereinafter claimed.

1. In combination with a scoop bucket haying the usual side and rearwalls and bottom. a. U-shaped bail having the ends of the arms thereofpivoted to the sidewalls at a point adjacent the upper ends thereof andat the rear of said side walls and projecting forwardly from saidpivots, pusher arms pivoted to opposite ends of the cross .bar of thebail and extending rearwardly over the arms-of the bail, and a latch.normally preventing vertical movement of the rear end of the bucket withrelation to the pusher arms.

2. In combination with a scoop. bucket having the usual side and rearwalls and bottom, a U-shaped, bail having. the ends; of the arms,thereof. p voted to the side walls at a point adjacent the upper endsthereoj and at the rear of said side walls and projecting forwardly fromsaid pivots, pusher arms pivoted to opposite ends of the cross bar ofthe bail and extending rearwardly over the arms of the bail, a latchnormally preventing vertical movement of the rear end of the bucket withrelation to the pusher arms and a mounting for said latch havingconnection with said pusher arms wherel y it engages against the bottomof the bucket during a dumping operation to limit rotation of the bucketwhen the bottom of the bucket is at a predetermined angle to the ground.

3. In combination with a scoop bucket having the usual side and rearwalls and bottom, a U-shaped bail having the ends of the arms thereofpivoted to the side walls at a point adjacent the upper ends thereof andat the rear of said side walls and pro jecting forwardly from saidpivots, pusher arms pivoted to opposite ends of the cross bar of thebail and extending rearwardly over the arms. of the bail, a latchnormally preventing vertical movement of the rear end of the bucket withrelation to the pusher arms, a mounting for said latch having connectionwith said pusher arms whereby it engages against the bottom of thebucket during a dumping operation to limit rotation of the bucket whenthe bottom of the bucket is at a predetermined angle to the ground andshoes secured to the forward ends of the side walls of the bucket andengaging the ground (lining a dumping operation to maintain the forwardedge of the bottom of the bucket in spaced relation to the ground.

4. In combination with a scoop bucket having the usual side and rearwalls and bottom, a U-shaped bail having the ends of the arms thereofpivoted to the side walls at a point adjacent the upper ends thereof andat the rear of said side walls and projecting forwardly from saidpivots, pusher arms pivot-ed to. opposite ends of the cross bar of thebail and extending rearwardly over the arms of the bail, a latchnormally prevent ing vertical movement of the rear end of the bucketwith relation to the pusher arms, a sci-mid J-shaped bail having theends of the arms thereof pivoted to the side walls adjacent the bottomsof the side walls and ex tending rearwardly from its pivots and linksconnecting said pusher arms and the last, named bail and maintaining thecross arm of the bail in substantially fixed spaced relation to thepusher arms.

5. In combination with a scoop bucket having the usual side and rearwalls and bottom, a U-shaped bail having the ends of the arms thereof;pivoted to the side walls at a point adjacent the upper ends thereof andat theircar of said sidewalls and project ing forwardly from saidpivots, pusher arms pivoted to opposite ends of the cross bar of thebail and extending rearwardly over the arms of the bail, a latchnormally preventing vertical movement of the rear end of the bucket withrelation to the pusher arms, a second "Ll-shaped bail having the ends ofthe arms thereof pivoted to the side walls adjacent the bottoms of theside walls and ex tending rearwardly from its pivots and linksconnecting said pusher arn'is and the last named bail and maintainingthe cross arm of the bail in substantially fixed spaced re lat-ion tothe pusher arms, the cross bar of the last named bail engaging thebottom of the bucket during a dumping operation to limit rotation of thebucket when the bottom of the bucket is at a predetermined angle to theground.

6. In combination with a scoop bucket having the usual side and rearwalls and bottom a U-shaped bail having the ends of the arms thereofpivoted to the side walls at a point adjacent the upper ends thereof andat the rear of said side walls and projecting forwardly from saidpivots, pusher arms pivoted to opposite ends of the cross bar of thebail and extending rearwardly over the arms of the bail, a latchnormally preventing v-er-- tical movement of the rear end of the bucketwith relation to the pusher arms, a second tot-shaped bail having theends of the arms thereof pivoted to the sine walls adjacent the bottomsof the side walls and extending rearwardly from its pivots, linksconnecting said pusher arms and the last named bail and maintaining thecross arm of the bail substantially fired spaced relation to the pusl erarms, the cross bar of the last named bail engaging the bottom of thebucket during a dumping operation to limit rotation of the bucket whenthe bottom of the bucket is at a predetermined angle to the ground andmeans at the forward ends of the side walls of the bucket formaintaining the forward edge of the bucket bottom in spaced relation tothe ground when the bottom is vertically arranged.

7.1n combination with a scoop bucket having the usual side and rearwalls and bottom, a Ushaped bail having the ends of the arms thereofpivoted to the side walls at a point adjacent the upper ends thereof andat the rear of said side walls and projecting forwardly from saidpivots, pusher arms pivoted to opposite ends of the cross bar of Lil-3bail and. extending r'earwardly over the arms of the bail, a latchnormally preventin g vertical movement of the rear end of the bucketwith relation to the pusher arms, a second U-shaped bail having the endsof the arms thereof pivoted to the side walls adjacent the bottoms ofthe side Walls and extending rearwardly from its pivots, linksconnecting said pusher arms and the last name-d bail and maintaining thecross arm of the bail in substantially fixed spaced relation to thepusher arms, the cross bar of the last named bail engaging the bottom ofthe bucket during a dumping operation to limit rotation of the bucketwhen the bottom of the bucket is at a predetermined angle to the ground,the cross bar of the last named bail having a rigid arm and a springconnecting said latch and said arm and normally positioning the latchfor engagement with the upper end of the rear wall of the bucket whenthe bucket is in loading position.

In testimony whereof I hereunto aflix my signature.

JOHN KIRK FARRIS.

